Effect of compound energy field cast-rolling on microstructure and properties of AZ61 magnesium alloy plate
Author(s): ZHANG Huan-huan, HUANG Yuan-chun, LIU Sheng-dan, LIU Yu, XIAO Zheng-bing, DU Zhi-yong
Pages: 1960-1967
Year: 2014 Issue: 8
Journal: The Chinese Journal of Nonferrous Metals
Keyword: AZ61 magnesium alloy; compound energy field; cast-rolling; mechanical property; processing property;
Abstract: The influence of compound energy field (ultrasonic and electromagnetic field) cast-rolling process on the microstructure, mechanical and processing properties of AZ61 magnesium alloy plate was investigated by metallurgical microscopy, scanning electron microscopy, tensile and bending tests. The results show that the compound energy field effectively decreases the grain size and the precipitates distribute homogeneously compared with the conventional cast-rolling magnesium alloy strip. After adding the compound energy field, the tensile strength, the yield strength and elongation of the alloy plate increase by 10.58%, 12.84% and 52.17%, respectively, accompanied with the final rolling plate increasing by 10.45%, 20.56% and 65.25%. Furthermore, after cast-rolling, the alloy plate shows the characteristics of a weaker crack tendency, higher tensile strength and the maximum deflection, a lower bending resistance, etc, which reduces the abrasion between the material and tool during processing, and is also good to omnibus properties.
Pages: 1960-1967
Year: 2014 Issue: 8
Journal: The Chinese Journal of Nonferrous Metals
Keyword: AZ61 magnesium alloy; compound energy field; cast-rolling; mechanical property; processing property;
Abstract: The influence of compound energy field (ultrasonic and electromagnetic field) cast-rolling process on the microstructure, mechanical and processing properties of AZ61 magnesium alloy plate was investigated by metallurgical microscopy, scanning electron microscopy, tensile and bending tests. The results show that the compound energy field effectively decreases the grain size and the precipitates distribute homogeneously compared with the conventional cast-rolling magnesium alloy strip. After adding the compound energy field, the tensile strength, the yield strength and elongation of the alloy plate increase by 10.58%, 12.84% and 52.17%, respectively, accompanied with the final rolling plate increasing by 10.45%, 20.56% and 65.25%. Furthermore, after cast-rolling, the alloy plate shows the characteristics of a weaker crack tendency, higher tensile strength and the maximum deflection, a lower bending resistance, etc, which reduces the abrasion between the material and tool during processing, and is also good to omnibus properties.
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